
1-[1-[4-(4-fluorophenyl)-4-oxo-butyl]- 3,6-dihydro-2H-pyridin-4-yl]- 3H-benzoimidazol- 2-one
Dropel具有顯著的精神安定與鎮靜作用,能解除恐懼並可提供患者精神上超然及莫不關心的感覺,而能維持反射警覺性。Dropel亦可產生止吐作用,可降低外科手術過程中噁心與嘔吐的發生,於手術後提供止吐的保護作用。
Dropel可加強中樞神經抑制劑的作用。其輕微之alpha 1腎上腺阻斷作用,使末梢血管擴張並減少腎上腺素所引起的血壓升高作用。Dropel可產生低血壓,減輕末梢阻力,亦可降低肺動脈壓。可以減少因腎上腺素所引起的心律不整,但不能預防其他原因的心律不整。
成人劑量:最大初始劑量爲2.5 mg IM or slow IV,另可増加投與1.25 mg 之劑量以達到期望之作用,然而增加投與之劑量必須在潛在利益大於潛在危險性時小心投藥。
小孩劑量:2 至12 歳之小孩,最大初始劑量爲每公斤投與0.1 mg IM or slow IV,並將病人之年齡及其他臨床因子納入考量,然而增加投與之劑量必須在潛在利益大於潛在危險性時小心投藥。
Distribution
Vd is 1.5 L/kg (at steady-state). Biphasic distribution with a t ½ of approximately 1.4 min (rapid phase) and approximately 14.3 min (slower phase).
Metabolism
Extensively metabolized.
Elimination
IM
Approximately 75% excreted in the urine (1% as unchanged drug) and 22% excreted in feces. t ½ approximately 134 min.
Onset
3 to 10 min.
Peak
30 min.
Duration
2 to 4 h.
CNS depressants
Additive CNS depression may result.
Diuretics, drugs known to increase the QT interval (eg, cisapride, pimozide)
Risk of life-threatening arrhythmias, including torsades de pointes, may be increased.
Incompatibility
Barbiturates are physically incompatible with droperidol.
2.嚴重抑鬱症病人。
3.昏迷病人或Parkinson症患者進用本品。




